Who Killed Sara? (Season 1) follows Álex Guzmán, who is released from prison after 18 years for a crime he didn’t commit—the murder of his sister Sara. Framed by the wealthy Lazcano family, Álex seeks revenge while uncovering the truth behind Sara’s death.
The series shifts between past and present, revealing Sara’s complicated relationships with the Lazcano siblings—Rodolfo, José María, and Elisa—as well as her secret affair with Rodolfo. Flashbacks show Sara’s manipulative and reckless behavior, hinting that many had motives to kill her.
Álex’s investigation leads him to discover Sara was pregnant before her death, adding another layer to the mystery. He manipulates the Lazcanos, getting close to Elisa and reigniting tensions within the family. Meanwhile, Rodolfo, now married to Sara’s best friend Mariana, struggles with guilt.
As Álex digs deeper, he learns Sara’s death may have been accidental, caused by a faulty parasailing harness—sabotaged by someone. The season ends with a shocking twist: Sara’s body is missing from her grave, suggesting she might still be alive. The truth remains hidden, setting up the mystery for Season 2.
Who Killed Sara? – TV Series – Season 1 – Trailer
